Asymmetric dichroic dye molecules having poly(arylazo) linking groups, a
bis-substituted aryl thiazyl end group, and another end group
    4.
    发明授权
    Asymmetric dichroic dye molecules having poly(arylazo) linking groups, a bis-substituted aryl thiazyl end group, and another end group 失效
    具有聚(芳基偶氮)连接基团的不对称二色性染料分子,双取代芳基噻唑基端基和另一个末端基

    公开(公告)号:US4565424A

    公开(公告)日:1986-01-21

    申请号:US337493

    申请日:1982-01-06

    摘要: A dichroic dyestuff having the formulaQ--A--Zwherein:A is a poly(arylazo) linking group wherein the aryl comprises 6 to 10 carbon atoms and has 4,4'-azo linkages;Q is a bis-substituted aryl thiazyl substituent wherein the aryl comprises 6 to 10 carbon atoms;andZ is selected from the group consisting of naphthalene having an alkyl substituted amino in the 4 position, 2,3-dihydro-2,2'-substituted-perimidine and julolidine groups;forms guest-host combinations with nematic liquid crystals. These dichroic dyes have absorption maxima at wavelengths greater than 600 nanometers and transmit less than 50% of incident light having wavelengths between 600 and 700 nanometers. Thus these dyes, when combined with dichroic dyes which have absorption maxima between 400 and 600 nanometers, and nematic liquid crystals, are useful to provide electro-optical displays which change from clear to a neutral black color or vice versa when an electric field is applied to the electro-optical display.

    摘要翻译: 具有式Q-A-Z的二色性染料,其中:A是聚(芳基偶氮)连接基团,其中芳基包含6至10个碳原子并具有4,4'-偶氮键; Q是双取代的芳基噻唑基取代基,其中芳基包含6至10个碳原子; Z选自4位具有烷基取代氨基的萘,2,3-二氢-2,2'-取代 - 脒基和高洛兰定组; 形成与向列液晶的客体 - 主机组合。 这些二色性染料在波长大于600纳米处具有最大吸收,并且透射小于50%的具有600-700纳米波长的入射光。 因此,这些染料当与吸收最大值在400和600纳米之间的二色性染料和向列型液晶组合时,可用于提供电光显示器,其在施加电场时从透明变为中性黑色或反之亦然 到电光显示器。

    Azo compounds containing both sulfo groups and basic or cationic groups
which compounds are in metal-free or 1:1 metal complex form

    公开(公告)号:US4594410A

    公开(公告)日:1986-06-10

    申请号:US409111

    申请日:1982-08-18

    申请人: Reinhard Pedrazzi

    发明人: Reinhard Pedrazzi

    摘要: Azo dyes of the formula ##STR1## and external salts thereof, wherein F is the residue of a monoazo or disazo compound in 1:1 metal complex form or of a trisazo, disazoazoxy or tetrakisazo compound in metal-free or 1:1 metal complex form,each X is independently --NR.sub.2 --Q--NR.sub.3 R.sub.4 or --NR.sub.2 --Q--N.sup..sym. R.sub.5 R.sub.6 R.sub.7, whereinQ is linear or branched C.sub.2-6 alkylene or --NH--CO--CH.sub.2 --,R.sub.2 is hydrogen or C.sub.1-4 alkyl,each of R.sub.3 and R.sub.4 is independently hydrogen; C.sub.1-6 alkyl; C.sub.2-6 alkyl monosubstituted by cyano or hydroxy in the 2-, 3-, 4-, 5- or 6-position; phenyl(C.sub.1-3 alkyl); phenyl(C.sub.1-3 alkyl) having, on the phenyl ring, 1, 2 or 3 substituents selected from chloro, C.sub.1-4 alkyl and C.sub.1-4 alkoxy; C.sub.5-6 cycloalkyl or C.sub.5-6 cycloalkyl substituted by 1, 2 or 3 C.sub.1-4 alkyl groups or --NR.sub.3 R.sub.4 is a saturated or unsaturated 5- or 6-membered heterocyclic ring containing, in addition to the nitrogen atom, no further or one further hetero atom,each of R.sub.5 and R.sub.6 is independently C.sub.1-6 alkyl; C.sub.2-6 alkyl monosubstituted by cyano or hydroxy in the 2-, 3-, 4-, 5- or 6-position; phenyl(C.sub.1-3 alkyl); phenyl(C.sub.1-3 alkyl) having, on the phenyl ring, 1, 2 or 3 substituents selected from chloro, C.sub.1-4 alkyl and C.sub.1-4 alkoxy; C.sub.5-6 cycloalkyl or C.sub.5-6 cycloalkyl substituted by 1, 2 or 3 C.sub.1-4 alkyl groups, andR.sub.7 is C.sub.1-4 alkyl or benzyl or ##STR2## is a saturated or unsaturated 5- or 6-membered heterocyclic ring containing, in addition to the nitrogen atom, no further or one further hetero atom or--N.sup..sym. R.sub.5 R.sub.6 R.sub.7 is pyridinium or pyridinium substituted by 1 or 2 methyl groups,each Z.sub.1 is independently --CO--, --SO.sub.2 -- or ##STR3## wherein R.sub.1 is hydrogen or C.sub.1-4 alkyl, andY is chloro, hydroxy, amino, an aliphatic, cycloaliphatic or aromatic amino group or a saturated heterocyclic amino group in which the nitrogen atom is part of the heterocyclic ring,each Z.sub.2 is independently ##STR4## wherein R.sub.1 is hydrogen or C.sub.1-4 alkyl,m is 1, 2 or 3,n is 0, 1, 2, 3 or 4, andp is 0, 1, 2, 3 or 4,with the proviso that n+2p.gtoreq.m+1, useful for dyeing and printing cotton, paper and leather.

    Cyanoaryl-thiodiazole-azo dyestuff
    9.
    发明授权
    Cyanoaryl-thiodiazole-azo dyestuff 失效
    CYANOARYL-THIODIAZOLE-AZO DYESTUFF

    公开(公告)号:US3862117A

    公开(公告)日:1975-01-21

    申请号:US22561872

    申请日:1972-02-11

    申请人: BAYER AG

    发明人: LEVERENZ KLAUS

    摘要: Azo dyestuff of the formula

    IN WHICH X and Y, independently of one another, are alkyl, cycloalkyl, aralkyl, or aryl, and in which X and Y together may form the residual member of a fused aromatic-carbo-cyclic or aromaticheterocyclic ring which may be partially hydrogenated; and K is the radical of a coupling component; and processes for the production of such dyestuffs. These dyestuffs are useful for dyeing and printing synthetic fiber materials such as polypropylene, cellulose acetates, polyurethanes, polyamides and polyesters; the dyeings having good general fastness properties especially better fastness to sublimation.

    摘要翻译: 式X和Y的偶氮染料彼此独立地是烷基,环烷基,芳烷基或芳基,并且其中X和Y一起可以形成稠合芳族 - 碳环或芳族 - 杂环的残基 可以部分氢化的环; 并且K是耦合组分的基团; 以及生产这种染料的方法。 这些染料可用于染色和印刷合成纤维材料如聚丙烯,乙酸纤维素,聚氨酯,聚酰胺和聚酯; 该染色具有良好的通用牢度特性,特别是更好的耐升华牢度。